The reason is that the Emperor of the Tang Dynasty was the surname of Li, and the same voice with Li was unlucky. Therefore, the court banned eating squid and caught it in the river. If there were squid, it would hit dozens of boards!
Therefore, people in the Tang Dynasty prefer squid and even worship squid as a mascot.
In the palace, you can see various ornaments carved out of fish, as well as daily necessities and accessories. Such as fish jade pillow, jade fish pendant.